From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Fri, 8 Mar 2019 05:22:31 +0000 (+0900)
Subject: condition: introduce condition_test_list()
X-Git-Tag: v242-rc1~90^2~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=828fa6108b3fac423d3fd8928a53a3c2f7933769;p=thirdparty%2Fsystemd.git

condition: introduce condition_test_list()
---

diff --git a/src/shared/condition.c b/src/shared/condition.c
index fb77966264e..44d88c37dd4 100644
--- a/src/shared/condition.c
+++ b/src/shared/condition.c
@@ -644,6 +644,52 @@ int condition_test(Condition *c) {
         return b;
 }
 
+bool condition_test_list(Condition *first, const char *(*to_string)(ConditionType t), condition_test_logger_t logger, void *userdata) {
+        Condition *c;
+        int triggered = -1;
+
+        assert(!!logger == !!to_string);
+
+        /* If the condition list is empty, then it is true */
+        if (!first)
+                return true;
+
+        /* Otherwise, if all of the non-trigger conditions apply and
+         * if any of the trigger conditions apply (unless there are
+         * none) we return true */
+        LIST_FOREACH(conditions, c, first) {
+                int r;
+
+                r = condition_test(c);
+
+                if (logger) {
+                        if (r < 0)
+                                logger(userdata, LOG_WARNING, r, __FILE__, __LINE__, __func__,
+                                       "Couldn't determine result for %s=%s%s%s, assuming failed: %m",
+                                       to_string(c->type),
+                                       c->trigger ? "|" : "",
+                                       c->negate ? "!" : "",
+                                       c->parameter);
+                        else
+                                logger(userdata, LOG_DEBUG, 0, __FILE__, __LINE__, __func__,
+                                       "%s=%s%s%s %s.",
+                                       to_string(c->type),
+                                       c->trigger ? "|" : "",
+                                       c->negate ? "!" : "",
+                                       c->parameter,
+                                       condition_result_to_string(c->result));
+                }
+
+                if (!c->trigger && r <= 0)
+                        return false;
+
+                if (c->trigger && triggered <= 0)
+                        triggered = r > 0;
+        }
+
+        return triggered != 0;
+}
+
 void condition_dump(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t)) {
         assert(c);
         assert(f);
diff --git a/src/shared/condition.h b/src/shared/condition.h
index e69fc366f78..773490f0525 100644
--- a/src/shared/condition.h
+++ b/src/shared/condition.h
@@ -68,6 +68,8 @@ void condition_free(Condition *c);
 Condition* condition_free_list(Condition *c);
 
 int condition_test(Condition *c);
+typedef int (*condition_test_logger_t)(void *userdata, int level, int error, const char *file, int line, const char *func, const char *format, ...) _printf_(7, 8);
+bool condition_test_list(Condition *first, const char *(*to_string)(ConditionType t), condition_test_logger_t logger, void *userdata);
 
 void condition_dump(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t));
 void condition_dump_list(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t));